The Monstrous Serpent (Commander) - Upgraded

Original Name:

Koma, Cosmos SerpentKoma, Cosmos Serpent

The Monstrous Serpent
Rank #308
388decks
As CommanderAs CardAverage DeckDecks
Bracket
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Budget
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Background image for How To Play Sea Creatures Differently In Commander
Sikora
Nov 13, 2025
Sikora
How To Play Sea Creatures Differently In Commander
Sea creatures in Magic are basically as old as the game itself, but they've changed significantly in that time.
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Utility Lands
Mana Artifacts
Lands
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The Unagi of Kyoshi Island
17%inclusion24 decks139 decks
12%synergy
Sodden Verdure
13%inclusion5 decks38 decks
9%synergy
Tam, Mindful First-Year
11%inclusion4 decks37 decks
10%synergy
Shared Roots
8.2%inclusion11 decks134 decks
5%synergy
Ember Island Production
6.1%inclusion8 decks131 decks
5%synergy
High Synergy Cards
Adrix and Nev, Twincasters
76%inclusion296 decks388 decks
68%synergy
Whelming Wave
75%inclusion292 decks388 decks
64%synergy
Elemental Bond
67%inclusion261 decks388 decks
62%synergy
Spark Double
65%inclusion252 decks388 decks
55%synergy
Koma, World-Eater
64%inclusion247 decks385 decks
51%synergy
Junk Winder
56%inclusion217 decks388 decks
49%synergy
Parallel Lives
55%inclusion214 decks388 decks
49%synergy
Serpent of Yawning Depths
54%inclusion209 decks388 decks
47%synergy
Irenicus's Vile Duplication
49%inclusion191 decks388 decks
43%synergy
Sakashima of a Thousand Faces
47%inclusion184 decks388 decks
42%synergy
Top Cards
Cultivate
74%inclusion289 decks388 decks
28%synergy
Counterspell
74%inclusion286 decks388 decks
24%synergy
Rampant Growth
70%inclusion270 decks388 decks
29%synergy
Kodama's Reach
67%inclusion261 decks388 decks
31%synergy
Beast Within
59%inclusion229 decks388 decks
9%synergy
Nature's Lore
57%inclusion220 decks388 decks
26%synergy
Farseek
55%inclusion213 decks388 decks
30%synergy
Aesi, Tyrant of Gyre Strait
53%inclusion205 decks388 decks
35%synergy
Heroic Intervention
53%inclusion204 decks388 decks
22%synergy
Growth Spiral
52%inclusion202 decks388 decks
7%synergy
Game Changers
Cyclonic Rift
37%inclusion143 decks388 decks
11%synergy
Rhystic Study
31%inclusion120 decks388 decks
9%synergy
Seedborn Muse
24%inclusion95 decks388 decks
9%synergy
Fierce Guardianship
23%inclusion90 decks388 decks
6%synergy
Worldly Tutor
16%inclusion64 decks388 decks
1%synergy
Consecrated Sphinx
16%inclusion63 decks388 decks
7%synergy
Force of Will
6.2%inclusion24 decks388 decks
-4%synergy
Gaea's Cradle
5.9%inclusion23 decks388 decks
-1%synergy
Ancient Tomb
5.4%inclusion21 decks388 decks
-4%synergy
Creatures
Llanowar Elves
47%inclusion183 decks388 decks
19%synergy
Spawning Kraken
45%inclusion174 decks388 decks
37%synergy
Arixmethes, Slumbering Isle
45%inclusion173 decks388 decks
31%synergy
Birds of Paradise
41%inclusion159 decks388 decks
13%synergy
Sakura-Tribe Elder
40%inclusion156 decks388 decks
21%synergy
Craterhoof Behemoth
37%inclusion145 decks388 decks
28%synergy
Tatyova, Benthic Druid
37%inclusion144 decks388 decks
6%synergy
Sakashima the Impostor
37%inclusion144 decks388 decks
35%synergy
Elvish Mystic
35%inclusion135 decks388 decks
11%synergy
Murkfiend Liege
32%inclusion124 decks388 decks
18%synergy
Garruk's Packleader
31%inclusion119 decks388 decks
28%synergy
Summon: Leviathan
29%inclusion87 decks297 decks
22%synergy
Hullbreaker Horror
29%inclusion111 decks388 decks
11%synergy
Ohran Frostfang
28%inclusion108 decks388 decks
24%synergy
Eternal Witness
27%inclusion105 decks388 decks
6%synergy
Roaming Throne
23%inclusion91 decks388 decks
16%synergy
Enduring Vitality
23%inclusion88 decks385 decks
15%synergy
Archetype of Imagination
22%inclusion87 decks388 decks
18%synergy
Fyndhorn Elves
22%inclusion87 decks388 decks
7%synergy
Fanatic of Rhonas
21%inclusion80 decks388 decks
15%synergy
Octomancer
20%inclusion78 decks387 decks
15%synergy
Coiling Oracle
19%inclusion75 decks388 decks
6%synergy
Esix, Fractal Bloom
19%inclusion75 decks388 decks
16%synergy
Slinn Voda, the Rising Deep
19%inclusion74 decks388 decks
13%synergy
Chameleon, Master of Disguise
17%inclusion33 decks197 decks
14%synergy
Scourge of Fleets
15%inclusion59 decks388 decks
7%synergy
Starwinder
15%inclusion36 decks241 decks
8%synergy
Scute Swarm
14%inclusion54 decks388 decks
-7%synergy
Reclamation Sage
14%inclusion53 decks388 decks
0%synergy
Saryth, the Viper's Fang
13%inclusion50 decks388 decks
11%synergy
Curiosity Crafter
12%inclusion48 decks388 decks
9%synergy
Enduring Curiosity
12%inclusion47 decks386 decks
9%synergy
Nadir Kraken
12%inclusion47 decks388 decks
8%synergy
Uro, Titan of Nature's Wrath
12%inclusion45 decks388 decks
2%synergy
Glasspool Mimic
11%inclusion44 decks388 decks
7%synergy
Circle of Dreams Druid
11%inclusion43 decks388 decks
9%synergy
Xolatoyac, the Smiling Flood
11%inclusion42 decks388 decks
4%synergy
Avenger of Zendikar
11%inclusion42 decks388 decks
-7%synergy
Stormtide Leviathan
10%inclusion40 decks388 decks
4%synergy
Tireless Provisioner
10%inclusion39 decks388 decks
-5%synergy
Toski, Bearer of Secrets
10%inclusion38 decks388 decks
6%synergy
Azusa, Lost but Seeking
10%inclusion38 decks388 decks
-4%synergy
Delighted Halfling
10%inclusion38 decks388 decks
-2%synergy
Phyrexian Metamorph
10%inclusion37 decks388 decks
0%synergy
Nezahal, Primal Tide
10%inclusion37 decks388 decks
-1%synergy
Rampaging Baloths
9.3%inclusion36 decks388 decks
-8%synergy
Clever Impersonator
9.3%inclusion36 decks388 decks
4%synergy
Lotus Cobra
9.0%inclusion35 decks388 decks
-5%synergy
Auton Soldier
8.5%inclusion33 decks388 decks
6%synergy
Progenitor Mimic
8.0%inclusion31 decks388 decks
3%synergy
Instants
Negate
40%inclusion157 decks388 decks
15%synergy
Double Major
40%inclusion157 decks388 decks
32%synergy
An Offer You Can't Refuse
38%inclusion148 decks388 decks
15%synergy
Pongify
38%inclusion146 decks388 decks
13%synergy
Second Harvest
36%inclusion138 decks388 decks
29%synergy
Arcane Denial
36%inclusion138 decks388 decks
13%synergy
Return of the Wildspeaker
32%inclusion126 decks388 decks
22%synergy
Rapid Hybridization
32%inclusion125 decks388 decks
6%synergy
Mana Drain
32%inclusion125 decks388 decks
16%synergy
Swan Song
27%inclusion106 decks388 decks
8%synergy
Reality Shift
22%inclusion85 decks388 decks
7%synergy
Krosan Grip
19%inclusion75 decks388 decks
12%synergy
Simic Charm
19%inclusion73 decks388 decks
11%synergy
Nature's Claim
16%inclusion63 decks388 decks
6%synergy
Voidslime
15%inclusion59 decks388 decks
10%synergy
Brainstorm
15%inclusion58 decks388 decks
1%synergy
Planar Genesis
15%inclusion57 decks388 decks
4%synergy
Tamiyo's Safekeeping
14%inclusion56 decks388 decks
9%synergy
Harrow
14%inclusion56 decks388 decks
3%synergy
Sink into Stupor
14%inclusion56 decks388 decks
3%synergy
Plasm Capture
14%inclusion55 decks388 decks
11%synergy
Snakeskin Veil
13%inclusion51 decks388 decks
7%synergy
Aetherize
13%inclusion49 decks388 decks
1%synergy
Stubborn Denial
12%inclusion48 decks388 decks
10%synergy
Return to Nature
12%inclusion45 decks388 decks
6%synergy
Entish Restoration
10%inclusion39 decks388 decks
1%synergy
Eureka Moment
10%inclusion37 decks388 decks
-1%synergy
Tyvar's Stand
9.3%inclusion36 decks388 decks
7%synergy
Collective Resistance
9.3%inclusion36 decks388 decks
6%synergy
Archdruid's Charm
8.8%inclusion34 decks388 decks
3%synergy
Mystic Reflection
8.8%inclusion34 decks388 decks
6%synergy
Disallow
8.8%inclusion34 decks388 decks
7%synergy
Chord of Calling
8.8%inclusion34 decks388 decks
1%synergy
Perplexing Test
8.5%inclusion33 decks388 decks
4%synergy
Force of Negation
8.5%inclusion33 decks388 decks
0%synergy
Resculpt
8.2%inclusion32 decks388 decks
2%synergy
Slip Out the Back
8.0%inclusion31 decks388 decks
4%synergy
Decisive Denial
7.7%inclusion30 decks388 decks
3%synergy
Auroral Procession
7.4%inclusion25 decks337 decks
4%synergy
Sublime Epiphany
7.2%inclusion28 decks388 decks
5%synergy
Fog
6.7%inclusion26 decks388 decks
3%synergy
Noxious Revival
6.4%inclusion25 decks388 decks
0%synergy
Lazotep Plating
6.4%inclusion25 decks388 decks
6%synergy
Pact of Negation
6.4%inclusion25 decks388 decks
-1%synergy
Refute
5.7%inclusion22 decks385 decks
4%synergy
Three Steps Ahead
5.4%inclusion21 decks388 decks
3%synergy
Harmonized Crescendo
5.3%inclusion2 decks38 decks
4%synergy
Cackling Counterpart
5.2%inclusion20 decks388 decks
2%synergy
Force of Vigor
5.2%inclusion20 decks388 decks
1%synergy
Narset's Reversal
5.2%inclusion20 decks388 decks
4%synergy
Sorceries
Three Visits
49%inclusion191 decks388 decks
26%synergy
Skyshroud Claim
36%inclusion141 decks388 decks
27%synergy
Overwhelming Stampede
27%inclusion103 decks388 decks
14%synergy
Quantum Misalignment
26%inclusion102 decks388 decks
23%synergy
Explore
24%inclusion94 decks388 decks
4%synergy
Migration Path
16%inclusion64 decks388 decks
13%synergy
Rite of Replication
15%inclusion59 decks388 decks
8%synergy
Shamanic Revelation
13%inclusion52 decks388 decks
8%synergy
Urban Evolution
13%inclusion49 decks388 decks
3%synergy
Rishkar's Expertise
12%inclusion48 decks388 decks
4%synergy
Bala Ged Recovery
12%inclusion47 decks388 decks
2%synergy
Ponder
11%inclusion44 decks388 decks
4%synergy
Triumph of the Hordes
11%inclusion42 decks388 decks
8%synergy
Explosive Vegetation
11%inclusion42 decks388 decks
5%synergy
Finale of Devastation
11%inclusion41 decks388 decks
-1%synergy
Harmonize
11%inclusion41 decks388 decks
5%synergy
Sea Gate Restoration
10%inclusion38 decks388 decks
4%synergy
Preordain
8.8%inclusion34 decks388 decks
1%synergy
Distant Melody
8.8%inclusion34 decks388 decks
5%synergy
Curse of the Swine
8.5%inclusion33 decks388 decks
-2%synergy
Regrowth
7.7%inclusion30 decks388 decks
4%synergy
Search for Tomorrow
7.7%inclusion30 decks388 decks
3%synergy
Windfall
7.2%inclusion28 decks388 decks
3%synergy
Into the North
6.2%inclusion24 decks388 decks
5%synergy
Overrun
6.2%inclusion24 decks388 decks
4%synergy
Green Sun's Zenith
5.9%inclusion23 decks388 decks
-3%synergy
Tempt with Discovery
5.9%inclusion23 decks388 decks
2%synergy
Raise the Palisade
5.9%inclusion23 decks388 decks
0%synergy
Bridgeworks Battle
5.9%inclusion23 decks388 decks
1%synergy
Ezuri's Predation
5.7%inclusion22 decks388 decks
-2%synergy
Flare of Cultivation
5.2%inclusion20 decks388 decks
3%synergy
Circuitous Route
5.2%inclusion20 decks388 decks
3%synergy
Utility Artifacts
Lightning Greaves
43%inclusion165 decks388 decks
21%synergy
Helm of the Host
39%inclusion151 decks388 decks
34%synergy
Swiftfoot Boots
37%inclusion142 decks388 decks
11%synergy
Combine Chrysalis
26%inclusion100 decks388 decks
22%synergy
Mirror Box
18%inclusion69 decks388 decks
14%synergy
Emerald Medallion
14%inclusion55 decks388 decks
11%synergy
Eldrazi Monument
10%inclusion39 decks388 decks
9%synergy
Bident of Thassa
10%inclusion38 decks388 decks
3%synergy
Sapphire Medallion
10%inclusion38 decks388 decks
7%synergy
Idol of Oblivion
9.3%inclusion36 decks388 decks
6%synergy
The Great Henge
8.8%inclusion34 decks388 decks
0%synergy
Coat of Arms
6.7%inclusion26 decks388 decks
5%synergy
Banner of Kinship
5.5%inclusion21 decks385 decks
4%synergy
Enchantments
Doubling Season
51%inclusion199 decks388 decks
42%synergy
Tribute to the World Tree
45%inclusion175 decks388 decks
39%synergy
Kindred Discovery
32%inclusion124 decks388 decks
22%synergy
Mystic Remora
26%inclusion102 decks388 decks
11%synergy
Primal Vigor
21%inclusion80 decks388 decks
18%synergy
Cryptolith Rite
19%inclusion73 decks388 decks
16%synergy
Growing Rites of Itlimoc
18%inclusion69 decks388 decks
12%synergy
Garruk's Uprising
16%inclusion64 decks388 decks
0%synergy
Wild Growth
14%inclusion56 decks388 decks
6%synergy
Paradox Haze
14%inclusion55 decks388 decks
14%synergy
Beastmaster Ascension
13%inclusion51 decks388 decks
10%synergy
Utopia Sprawl
13%inclusion49 decks388 decks
6%synergy
Exploration
13%inclusion49 decks388 decks
-1%synergy
Propaganda
12%inclusion47 decks388 decks
5%synergy
Extravagant Replication
11%inclusion42 decks388 decks
8%synergy
Defense of the Heart
11%inclusion42 decks388 decks
9%synergy
Imprisoned in the Moon
11%inclusion41 decks388 decks
6%synergy
Wilderness Reclamation
11%inclusion41 decks388 decks
2%synergy
Sylvan Library
10%inclusion40 decks388 decks
1%synergy
Unnatural Growth
10%inclusion38 decks388 decks
6%synergy
Moonlit Meditation
8.3%inclusion20 decks241 decks
7%synergy
Kenrith's Transformation
7.5%inclusion29 decks388 decks
3%synergy
Impostor Syndrome
7.1%inclusion14 decks197 decks
5%synergy
Asceticism
7.0%inclusion27 decks388 decks
4%synergy
Ominous Seas
6.2%inclusion24 decks388 decks
2%synergy
Burgeoning
6.2%inclusion24 decks388 decks
-1%synergy
Opposition
5.9%inclusion23 decks388 decks
6%synergy
Verity Circle
5.7%inclusion22 decks388 decks
5%synergy
Dismiss into Dream
5.7%inclusion22 decks388 decks
5%synergy
Planeswalkers
Oko, Thief of Crowns
21%inclusion80 decks388 decks
14%synergy
Kiora, the Crashing Wave
7.2%inclusion28 decks388 decks
4%synergy
Oko, Lorwyn Liege
5.3%inclusion2 decks38 decks
4%synergy
Utility Lands
Reliquary Tower
61%inclusion238 decks388 decks
12%synergy
Yavimaya, Cradle of Growth
22%inclusion85 decks388 decks
0%synergy
Temple of the False God
21%inclusion83 decks388 decks
6%synergy
Boseiju, Who Endures
21%inclusion80 decks388 decks
-2%synergy
Mosswort Bridge
19%inclusion73 decks388 decks
2%synergy
Otawara, Soaring City
18%inclusion69 decks388 decks
-1%synergy
Command Beacon
18%inclusion68 decks388 decks
13%synergy
Alchemist's Refuge
17%inclusion66 decks388 decks
0%synergy
Mistrise Village
17%inclusion57 decks337 decks
6%synergy
Mystic Sanctuary
16%inclusion62 decks388 decks
4%synergy
Rogue's Passage
16%inclusion61 decks388 decks
-6%synergy
Castle Garenbrig
14%inclusion54 decks388 decks
9%synergy
Three Tree City
12%inclusion48 decks387 decks
7%synergy
Evendo, Waking Haven
11%inclusion26 decks243 decks
5%synergy
Castle Vantress
8.0%inclusion31 decks388 decks
1%synergy
Lumbering Falls
7.0%inclusion27 decks388 decks
0%synergy
Restless Vinestalk
6.2%inclusion24 decks388 decks
1%synergy
Scavenger Grounds
5.2%inclusion20 decks388 decks
1%synergy
Mana Artifacts
Sol Ring
93%inclusion360 decks388 decks
12%synergy
Arcane Signet
76%inclusion294 decks388 decks
13%synergy
Simic Signet
37%inclusion145 decks388 decks
6%synergy
Thought Vessel
37%inclusion142 decks388 decks
16%synergy
Talisman of Curiosity
30%inclusion115 decks388 decks
8%synergy
Fellwar Stone
13%inclusion52 decks388 decks
4%synergy
Commander's Sphere
10%inclusion38 decks388 decks
2%synergy
Thran Dynamo
6.4%inclusion25 decks388 decks
4%synergy
Mind Stone
6.4%inclusion25 decks388 decks
2%synergy
Decanter of Endless Water
6.2%inclusion24 decks388 decks
1%synergy
Lands
Island
94%inclusion365 decks388 decks
-1%synergy
Forest
93%inclusion362 decks388 decks
-2%synergy
Command Tower
91%inclusion352 decks388 decks
5%synergy
Hinterland Harbor
66%inclusion256 decks388 decks
6%synergy
Breeding Pool
58%inclusion226 decks388 decks
12%synergy
Yavimaya Coast
57%inclusion221 decks388 decks
4%synergy
Rejuvenating Springs
55%inclusion214 decks388 decks
11%synergy
Simic Growth Chamber
50%inclusion193 decks388 decks
2%synergy
Flooded Grove
49%inclusion192 decks388 decks
8%synergy
Dreamroot Cascade
49%inclusion189 decks388 decks
6%synergy
Misty Rainforest
41%inclusion159 decks388 decks
10%synergy
Vineglimmer Snarl
38%inclusion147 decks388 decks
-1%synergy
Temple of Mystery
37%inclusion143 decks388 decks
-1%synergy
Barkchannel Pathway
34%inclusion132 decks388 decks
14%synergy
Waterlogged Grove
28%inclusion108 decks388 decks
7%synergy
Exotic Orchard
26%inclusion100 decks388 decks
2%synergy
Evolving Wilds
25%inclusion98 decks388 decks
0%synergy
Hedge Maze
24%inclusion95 decks388 decks
5%synergy
Myriad Landscape
22%inclusion87 decks388 decks
1%synergy
Willowrush Verge
22%inclusion84 decks379 decks
5%synergy
Thornwood Falls
21%inclusion82 decks388 decks
4%synergy
Tangled Islet
20%inclusion79 decks388 decks
4%synergy
Rimewood Falls
19%inclusion74 decks388 decks
10%synergy
Terramorphic Expanse
18%inclusion68 decks388 decks
-2%synergy
Overflowing Basin
17%inclusion66 decks388 decks
-2%synergy
Botanical Sanctum
17%inclusion66 decks388 decks
4%synergy
Fabled Passage
15%inclusion59 decks388 decks
1%synergy
Tropical Island
14%inclusion56 decks388 decks
0%synergy
Sink into Stupor
14%inclusion56 decks388 decks
3%synergy
Snow-Covered Island
13%inclusion52 decks388 decks
7%synergy
Snow-Covered Forest
13%inclusion52 decks388 decks
7%synergy
Path of Ancestry
13%inclusion52 decks388 decks
-4%synergy
Bala Ged Recovery
12%inclusion47 decks388 decks
2%synergy
Glasspool Mimic
11%inclusion44 decks388 decks
7%synergy
Simic Guildgate
11%inclusion41 decks388 decks
0%synergy
Sea Gate Restoration
10%inclusion38 decks388 decks
4%synergy
Littjara Mirrorlake
8.5%inclusion33 decks388 decks
5%synergy
Blighted Woodland
8.0%inclusion31 decks388 decks
1%synergy
Windswept Heath
7.7%inclusion30 decks388 decks
-3%synergy
Flooded Strand
7.7%inclusion30 decks388 decks
-4%synergy
Prismatic Vista
7.2%inclusion28 decks388 decks
0%synergy
Scalding Tarn
7.2%inclusion28 decks388 decks
-3%synergy
Polluted Delta
7.2%inclusion28 decks388 decks
-3%synergy
Verdant Catacombs
7.0%inclusion27 decks388 decks
-3%synergy
Quandrix Campus
6.7%inclusion26 decks388 decks
0%synergy
Wooded Foothills
6.4%inclusion25 decks388 decks
-3%synergy
Bridgeworks Battle
5.9%inclusion23 decks388 decks
1%synergy
Woodland Stream
5.9%inclusion23 decks388 decks
1%synergy
Disciple of Freyalise
5.2%inclusion20 decks388 decks
0%synergy
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